package com.geekaca.d2;

public class TypeConvert {
    public static void main(String[] args) {
        /**
         * 自动类型转换
         */
        byte bt = 12;
        int length = bt;
        System.out.println(length);

        double result = 12 + 13;
        System.out.println("result是:" + result);


    }
}
